5. Actuator Connections; Installing Multiple Damper Section Assemblies - Trane Performance Climate Changer Installation, Operation And Maintenance Manual

Retaining
Angle
*only applicable for damper sizes above 36 in. x 36 in.
Both vertical and horizontal damper installations are typified by these
Fig. 3
drawings.

5. aCTUaTOr COnnECTIOnS

Electrical and/or pneumatic connections to damper
actuators should be made in accordance with wiring
and piping diagrams developed in compliance with
applicable codes, ordinances and regulations (see
Electrical Guidelines).
6. InSTaLLInG MULTIPLE DaMPEr SECTIOn
aSSEMBLIES
A damper assembly is not restricted to a maximum
number of sections, but must not exceed the section
sizes and overall sizes shown (see chart).
Two section high dampers require reinforcement using a
14 gauge (2mm), 5 in. (127mm) wide mullion as shown in
Fig. 4 below, or two individually sleeved units stacked
vertically, shown below in Fig. 5. When using two
individually sleeved units, the sleeve acts as the mullion,
therefore no mullion is required.
The damper sections must be attached together with
#10 ( / in. max. [19mm]) sheet metal screws,
3
4
(6mm) diameter nuts and bolts, tack or spot welds, or
/ in. (48mm) diameter steel pop rivets. Attachments
3
16
must be spaced a minimum of 6 in. (152mm) on
centers and a maximum of 2 in. (51mm) from corners.
Attachments must be made on front face and back face
(air entering and air exiting side) of damper sections.
note: Dampers ordered for individual installation may
not be installed together. The full assembly size must be
specified at the time the dampers are ordered.
Fig. 4
Single Sleeve Around Outside with
Support Mullion
Wall or
Floor
Min. 1 in.
Overlap*
Retaining
Angle
Sleeve
Duct
Damper
/ in.
1
4
14 ga.
5 in. wide
support
mullion
Fig. 5
Two Individually Sleeved Units
with No Mullions
Horizontal Mount
Maximum Single
Damper Model
Section Size
CFSD-211, 212 24 x 24
DFD-210 36 x 36 or 32 x 50
DFD-230 36 x 36 or 32 x 48
DFDAF-310 32 x 50
32 x 36
DFDTF-210
32 x 48
FSD-211, 212, 213 36 x 48 or 32 x 50
FSD-231 36 x 36 or 32 x 48
FSD-311, 311M, 312, 32 x 50
312M
IMO-310 32 x 50
IMO-311 32 x 50
SEDFD-210, SEFSD- 24 x 30
211
SSFSD-211 24 x 30
Vertical Mount
Damper Model Maximum Single
Section Size
DFD-210 36 x 36 or 32 x 50
DFD-230 36 x 36 or 32 x 50
DFDAF-310
DFDTF-210
FSD-211, 212, 213 36 x 48 or 32 x 50
FSD-231 36 x 36 or 32 x 48
FSD-311, 311M,
312, 312M
IMO-311
SEDFD-210, 24 x 30 or 22 x 36
SSDFD-210
SEFSD-211 24 x 30 or 22 x 36
SSFSD-211
FSD-331 32 x 36 or 30 x 48
NOTE:
FSD model dampers fitted with a fusible link closure
device are limited to single section sizes. Dampers with a
fusible link and spring assembly closure device may not be
used for multiple section applications
7. COnnECTIOn anD OPEraTIOn OF TEMPEraTUrE
rESPOnSE DEVICES (rrL STanDarD, OCI OPTIOn,
anD TOr OPTIOn)
rrL - Dampers will be supplied with a thermostat-type
temperature response device, as a standard. The device
is a RRL (resettable link device), which only incorporates
one thermostat and therefore the damper remains
closed as soon as its sensor temperature is reached.
The RRL does not contain blade indication switches.
Refer to Fig. 6 for wiring of the RRL thermostat.
Maximum Over-
all Size for
Multi-Section
Dampers
NA
64 x 50
64 x 48
96 x 50
96 x 72
64 x 48 or 32 x 96
144 x 96
72 x 48
96 x 50
NA
NA
48 x 30
48 x 30
Maximum
Overall Size for
Multi-section
Dampers
64 x 50
64 x 48
32 x 50 96 x 50
32 x 36 96 x 72
32 x 50 64 x 50
128 x 100
72 x 48
32 x 50 128 x 100
32 x 50 NA
32 x 50 NA
48 x 30
88 x 72
120 x 96
.
5